Improvement in the takx-up  motion for power-looms



' UNrrizu STATES f PATENT OFFICE,-

JAMES WHrrAKER., oF PHILADELPHIA, rENnsYLvANfIA,

' Specification forming part oiLetfers Patent No. 36,S75,lntc4l November 4 1862 all whom #may concern: Be it known that I, .TAMEsWHrrAKEmuf Philadelphia, Pennsylvania, have invented fr -new'and-lmproved Tape-Up Motion for Power- L'ooms; and do hereby declare' the following tobelafullfcleau and exact description of the same, referencezbeiug had tothe accompany- 1 ing drawings,and to the letters ofreference My invention consistsinjcombiningiwith the ratchet-wl\eel1a,nd pawls of a take-up motion for power-looms a'uyconvenient-nu`mber of pins orth'eir equivalents', acted upon by anadditional pafwl or its et'lnivalent,` substantially las set forthhei:ei-r,after,s'o that theamount of the. takefup 'oi'theiahrie' maybe Areadily altered `at pleasure, and the number ofthreads to the inchofffabrlc may be increased or diminished Iwithout the necessity of resoxting to the usualtedious `-pla-n 'of changing the trainof gearing by which motion is: communicated from the Vretchet-wheelto the take-npyroller.

In order; to :enable others skilledinthe art to 'makeand use my invention, I will now pro-l cedto describe'its construction 'and operation;

Onreference tothe accompanyingdrawings, which .form a part of this specification* Figure lis: asideview of my 'improved take-np mov i tion forpowelelooxns, and Fig. 2an edge view.

, isa ratchet-wheel hung loosely to aj pin,l B5 which' issecuredto the framelwor'k ofthe ,llooin. Y j A Tothe hub 'o f--the wheel .A is secured a pin,-

ion, c, the teeth ofwhich are arranged to `gear l into those of a wheel secured tothe spindle o fthe usual take-up roller of the loom.

i On the inside of the rim of th ratchetwheel is afflange, D, the lcircumference of 'whichisrepresentjadbythe red line, Fig. :1, and this flange is pierced -for the reception of a nun1V lier of detachable pins,

Eis' a' lever hung-loosely-toapin, F, secured to the frame ofthe loom and tothe same' pin;

F, fis hung'th'e pawl G, the point of which is,

adaptedto theteeth of the ratchet-wheel, l

To the pin H,w hieh is rendered adjustable in a slot, h, in the lever E, is hung a pawl, -I,.

the end'of-Which is also adaptedzt-c the teeth of the 'ratchet-wheel.

` Toranother pin, J, which can be adj ustedin a. horizontal slot'in the upper end'of the lever-' 2E, is hung athird pawl, K, the end of whichY is arranged to act on whatever 'pins may be `inserted i n the holes of the ange DI. A vibrating motion is communicated tothe lever E on the fnlcrnm-pin Fwbymeans of a md5- one end of which is jointed .to a pin which is'f'rendered jadjnstablein the blot e, the other endiof the rodbeing' connected to or acted on by any` moving part of the loom which may'befound most applicable for the purpose.

V`In order thatiny improved?take-i1p-inotion may be thoroughly understood, it will be well to refer to such l:1s-are iii-ordinary use `on .power-looms. "The ordinary'take-'up motion '.consists'of'u ratchetwheel, A, its pinionO gearing into a lcog-Wheel on the takeup,` roller,

a vibrating lever, E,'andlthe twdpawlls G and I, the former of which, being hung tuthe'fula crum, acts only as a, retaining-pawhwhilc the lower pawl, I, serves-'by acting on theteetb of the ratchet-wheeLto impart to the samefan intermittent rotary motion and consequently to takeupthe fabric as it is-wove'n', Tet us suppose the vibrationsfof thelever Eto besuch 4that thepawl I can move the wheel- A tothe extent of one tooth only at, each vibration, and

that this movement of the wheel takes up one inch of the fabric during the time in which the l weft-thread hasbeen thrownacross the warp fty t n1,es the fabric'thus having nifty thre'ads to the inch; `lf a change as regard'sthennjn l ber of threads tothe inch is requiredf-fo ina j stance', varchange of from fifty to twenty-five threads per inch-this change' may be vreadily effected by imparting to the lever E/such a m'otion that for everyvibration of` the said' leverv thewheel A will move-to the extent of two teeth; but -if a change of' from fifty to forty threads per inchof thefabric is required,

no alteration in thermovenient-ofthelever can effect thischange.l vIt can only be producedb'y altering the gearing, composed of the'pi'nion c Vand the wheel into which that pinion'. gears.

This -is the 'usual 'inode of Amaking the `desired alteration',l and one' which is a source'of-much delay and annoyance,A es uecially'in weaving.

`certain.classes,of'fabrics in which changes 1n 1 its strength and density arelrequired. My invention has been designed with 4the view of obviating'the necessity of this repeated ehangeol'the gearing, and of readily increasing or diminishing the number otthreadsto the inch required in the fabric. In the pres-V ent instance there are one hundred and thirtyfour teeth in the wheel A, and. just half that .i for the'receptiousof pins w. Now, supposing that the take-up motion is so arranged that the I -y Y, sixtylseven threads-to the inch, and that it xequir'e s a movement `of t-he wheel A 5to the 'j L inch, no pins 'ai would be required'in this 4 simply so adjusted that the pawl I will move I ingsi'xty-sixthreads to theinoh are required in t'he fabric,'then two pins :v -areinsert'ed 1 l K ,acting on these pihs,willl|novethe wheel/A v to theextentof one tooth in excess of the their excess'of movement willf'take up vso much more of the fabricthat'thelatter wilLhavethe desired` number (sixty-six) ofy threads to the l the sudden excess of take-up, althoughit may.-

number-sixty-seven-h-of holes in the ange D loom is'in the act of wea-vinger Vfabric having extent-of. two teeth to take up the fabric,'sc 1V that it may' have thisfnunxbe 0f threads to the case, `the rod which .ctuates lever E being the wheel the required distance; but supposintofone of, the holes of the flanged); Thefpawl movement imparted to it by thepawl I, and',

w-arpuntil it has received a succession ofblows, 'u

transferred through successive threads; hfence make a temporaryiuequality in the fabricat the moment this excess of movement takes e sears place, thesubsequent regularity of the takeup and the successive blows which the weftthreads receivev 'cause-,this .inequality to dis appear.

lty will be understood that by thel insertion 'l of two'mo'repins a; in the :flange D the fabric will'h'ave sixty-vethreads to the inch, and

ifa pinA be inserted in every holeofpthe flange D, the number of threadsto the inch will .be thirty-three and oneha1f, the same as would.- be'produced by causi-ngvthe pawl I- to move the wheel'Atotheextentof three teeth for.v

even;1 `vibration of the lever.

Vthe-pin's,' in operation cansingfbutlittle delay,

the amount of take-up of `thec'loth maybe readily adj usted; so that the number of threads to the` inch may be altered "at pleasure.

.by Letters Patentv t Incombination with the ratchet'whee! and l any convenient numberot'detachablepins,,or

their equivalents, actedupon by an additional pawl or its equi valent, snbstant inl ly as set-forth,

for the purposespeciiiei.

' In testi inony "whereof Ithavesigned inynaine to this specification in the presence oftwoml.l scribing witnesses Witnessem'A HENRYHoWsoN,-

.JAMES McCAHEN.

Slt .will beseen withoutfurther description thatby'the simple 'insertion or withdrawal of I- claim ynsmy'invention-'and desireto secure .JAMES WHITAKE'RQ 

